DownloadVolley Demo Androidr
1.0 August 27, 2025- 8
- 1
- 2
- 3
- 4
- 5
Ko Abacus , Korean Abacus & Mental Arithmetic
KoAbacus 1.0.53 - Korean Abacus & Mental Arithmetic
The abacus is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere.
* button function
6,5,4,3,2,1 : - positional number
+ , - , x , / : the four arithmetical operation & new number genernation
9, 8, 7, 6, 5 : bounds
stat & end : result
* Menu Button
- Auto Test : Count, Delay
- Speech : Start, End, +, -, *, /
- Sound : Click Sound
* Start Button LongClick - Abcus Clear
* Menu Button LongClick - Volume Control (4.0 ~)
* [-] [x] [/] button LongClick - Auto Mental Arithnmetic
Action-adventure
Simulation Business
Role Playing
Sports Competition
Casual Intelligence
Card Strategy
Music Rhythm
Text Puzzle
Flying Shooting
Love Development
Business Office
Newsletter Social
Life Entertainment
Online Shopping
Practical Tools
Travel
Financial Management
Educational Learning
Information Reading
Sports and Health